The 30mm AK-630M automatic gun mount is designed to engage air and surface targets, such as anti-ship missiles, aircraft, helicopters, other types of air strike weapons, as well as small-size surface ships, drifting mines, and fire emplacements and observed enemy personnel ashore.

It is a turret-type mount remotely controlled by a fire control radar system and a sighting station (backup control post). It features AO-18 automatic gun with a revolving, continuously cooled six-barrel cluster, automatic belt feed, and a breech block mechanism to ram the round and extract the case after the shot.

The AO-18 employs water cooling of the cluster that makes it possible to conduct arduous duty firing.